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CITY

Rochester

Illinois · 4,093 residents (2025 est.) · 2.646 sq mi
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The short version

Rochester is significantly wealthier than the US average, with a median household income of $117,118. Population has grown 30% since 2000. 48% of adults hold a bachelor's degree or higher. Median home value has more than doubled since 2000, reaching $238,900. Poverty is rare here, at 2.5% of residents. It ranks in the top 5% of US cities for household income.

At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 39.8
US median: 38.9
More educated
48% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

3,766
+30%since 2000
from 2,893 in 2000
1990 – 2025
1,423 / sq mi
+30%since 2000
from 1,093 / sq mi in 2000
US average: 281
39.8
−1%since 2000
from 40.3 in 2000
US average: 38.9

PEP 2025 EST:4,093 residents (Census Bureau Vintage 2025, released March 2026)

Population, 19902024
3K3K3K4K4K1990201020202024Rochester
20244K
1990201020202024
Section 02

Income & economy

$117,118
+2%inflation adjusted, since 2000
from $62,891 in 2000
US average: $82,259
1990 – 2024
$47,762
+78%since 2000
from $26,881 in 2000
US average: $44,673
Households earning $100K+
80.3%
+24.5 ptssince 2009
from 55.8% in 2009
US average: 53.3%
2.5%
+1.3 ptssince 2000
from 1.2% in 2000
US average: 12.5%
0.305
−15%since 2010
from 0.361 in 2010
US average: 0.476
Workforce by industry, 2024
Other services11.2%
US avg: 6.7%
Public administration9.9%
US avg: 4.8%
Information8.5%
US avg: 10.8%
Retail trade6.1%
US avg: 9.9%
Finance & insurance3.2%
US avg: 5.9%
Transportation & warehousing2.5%
US avg: 2.2%
Wholesale trade2.4%
US avg: 6.9%
Professional, scientific, technical1.8%
US avg: 5.1%
Education & health services1.4%
US avg: 0.9%
Agriculture, forestry, fishing0.6%
US avg: 1.6%
Construction0.6%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Arts, entertainment, food0%
US avg: 1.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

$238,900
+14%inflation adjusted, since 2000
from $114,800 in 2000
US average: $376,019
1990 – 2024
$1,288
+25%inflation adjusted, since 2000
from $564 in 2000
US average: $1,442
93.3%
+2.7 ptssince 2000
from 90.6% in 2000
6.7% rent
3.7%
−0.8 ptssince 2009
from 4.5% in 2009
US average: 10.0%
16.3%
−2.6 ptssince 2009
from 18.9% in 2009
US average: 22.9%
30.5%
+2.0 ptssince 2009
from 28.6% in 2009
US average: 47.4%
2.0
+12%since 2000
from 1.8 in 2000
1990 – 2024
RELATED:See current rent listings in Rochester on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic98%(2,834)
Black0.3%(8)
Hispanic / Latino0.7%(20)
Asian0.4%(11)
Other0%
Diversity Score3.4%(97)
2024
White, non-Hispanic91.6%(3,449)
Black1.5%(57)
Hispanic / Latino1%(38)
Asian2.1%(78)
Other3.8%(144)
Diversity Score19.9%(749)
20
+491%since 2000
from 3 in 2000
1990 – 2024
Section 05

Education

47.9%
+3.6 ptssince 2000
from 44.3% in 2000
US average: 35.6%
High school or higher
98.6%
+5.7 ptssince 2000
from 92.9% in 2000
US average: 89.6%
16.7%
+0.5 ptssince 2000
from 16.2% in 2000
US average: 14.0%
Section 06

Commute & transportation

22.8 min
+122%since 2000
from 10.3 min in 2000
US average: 26.5
72.3%
−6.5 ptssince 2009
from 78.8% in 2009
US average: 68.9%
7.2%
−1.8 ptssince 2009
from 9.0% in 2009
US average: 8.5%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
19.1%
+10.1 ptssince 2009
from 9.0% in 2009
US average: 15.0%
0.6%
+0.6 ptssince 2009
from 0.0% in 2009
US average: 2.4%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
2.2%
−0.6 ptssince 2009
from 2.8% in 2009
US average: 8.3%
Section 07

Work & employment

2.9%
−0.9 ptssince 2011
from 3.8% in 2011
US average: 5.2%
60.4%
−8.8 ptssince 2011
from 69.2% in 2011
US average: 63.5%
19.5%
−7.2 ptssince 2009
from 26.8% in 2009
US average: 13.1%
51.8%
−26.6 ptssince 2009
from 78.4% in 2009
US average: 42.5%
Section 08

People & community

50.5%
+5.3 ptssince 2009
from 45.2% in 2009
49.5%
−5.3 ptssince 2009
from 54.8% in 2009
0.6%
−1.0 ptssince 2009
from 1.6% in 2009
US average: 14.1%
8.1%
−36.9 ptssince 2009
from 44.9% in 2009
US average: 6.2%
10.3%
+6.6 ptssince 2012
from 3.7% in 2012
US average: 13.3%
1.5%
−94.0 ptssince 2013
from 95.5% in 2013
US average: 8.4%
95.4%
+11.4 ptssince 2017
from 84.0% in 2017
US average: 91.0%
100.0%
+1.5 ptssince 2016
from 98.5% in 2016
US average: 77.7%
0.0%
−1.2 ptssince 2016
from 1.2% in 2016
US average: 13.6%
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Frequently asked

How many people live in Rochester, Illinois?

Rochester, Illinois has about 3,766 residents according to the 2024 American Community Survey.

What is the median household income in Rochester, Illinois?

The typical household in Rochester, Illinois earns about $117,118 a year. Half of households make more than that, and half make less.

Is Rochester, Illinois expensive?

In Rochester, Illinois, the median home is worth about $238,900, and the typical rent is about $1,288 a month.

How educated are people in Rochester, Illinois?

About 47.9% of adults age 25 and over in Rochester, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Rochester, Illinois?

About 2.5% of people in Rochester, Illinois live below the federal poverty line.

Has Rochester, Illinois grown since 1990?

Yes, Rochester, Illinois has grown since 1990. The population has added about 1,059 residents, a change of about 39 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →